Interactive

Add Value to the Load Profile

Since our core business is metering and measurement, our CLOU energy meters can contribute with data. Very typical for utilities is the collection of load profiles.

Poor Meter Connections are Causing Heat

Maintaining the right cross-section avoids overheating and is also reducing the internal resistance.

The Christmas Gimmick 2020

Table Tennis (Pīngpāng qiú 乒乓球) is one of the top National sports in China. As a proof of concept we have remade a very old arcade game.

How Mean is the Value?

CLOU energy meters and test equipment is measuring the true RMS value by waveform sampling. There are other methods, but they are less accurate.

Waveform Sampling for Electrical Measurements

The interactive graphics below shows the impact on sampling rates on different waveforms. The error calculation is based on true-rms for a wave with 360 samples and for training purpose...

Selection of Current Instrument Transformers

Transformer operated energy meters need instrument transformers to reduce high voltage- and current values to lower quantities for measurement purpose.

Cross-sections for electricity wiring

Each conductor wire has a resistance. Resistance means heat development inside the wire. Technically it's a loss.

The Critical Change Value

The critical change value indicates the maximum amount of change allowed in the meter's energy registers during disturbance tests without any current flowing in the meter's current circuits.

No Load Test for Energy Meters 2020

With publishing of the Edition 2 of IEC62052-11 the minimum run time calculation formula has changed.

The Energy Meter Register Resolution

The main purpose of an electronic energy meter is the accurate metering of the customer consumption. The meter has registers for storing the various consumption values

How does a scanning head work?

Each energy meter used for billing must have a test output. An optical indication is mandatory. Beside this the meter can also have electrical test outputs.

The Principle of Three-Phase Generators

We have a nice three phase power supply in our home, but where does it come from? And why does the waveform has a sine shape?